ELONGATED ILLUMINATION DEVICE HAVING UNIFORM LIGHT INTENSITY DISTRIBUTION
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United States of America Patent
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Issued Date -
Mar 22, 2007
app pub date -
Sep 19, 2006
filing date -
Sep 21, 2005
priority date (Note) -
Abandoned
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Abstract
An illumination device has an elongated array of point light sources, a focusing rod, and a diffusing rod. The focusing rod is positioned adjacent and along the array of point light sources, for focusing light into an elongated light distribution pattern. The diffusing rod is positioned adjacent and along the focusing rod for receiving the focused light and diffusing the light into an essentially uniform light intensity distribution pattern, for simulating a tubular lamp having a uniform light intensity distribution. The illumination device may further have a color-converting member for converting a light of a first color emitted by the array of point light sources to a light of a second color, such that the light emitted by the illumination device is of a color that is a combination of the light of a first color and the light of a second color.
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